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Finding the Fourth Proportional to 7,866.82, 10,856.13 and 4,330.00

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Solution

The fourth proportional to 7,866.82, 10,856.13 and 4,330.00 is: 5,975.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,866.82 : 10,856.13 = 4,330.00 : x
  2. Step 2: Convert to fraction form
    7,866.82/10,856.13 = 4,330.00/x
  3. Step 3: Cross multiply
    7,866.82x = 10,856.13 × 4,330.00
  4. Step 4: Simplify right side
    7,866.82x = 47,006,988.62
  5. Step 5: Solve for x
    x = 47,006,988.62/7,866.82
  6. Step 6: Final answer
    x = 5,975.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.